Cash-register.



E. S. CHURCH.

CASH REGISTER.

APPLICATION FILED SEPT.12. 1907.

Patented 00. 16,1911

2 SHEETSSHEBT L E. S. CHURCH.

CASH REGISTER. APPLIGATION FILED SEPT. 12, 1907.

917% Mi 13 M Patented Oct. 10, 1911.

2 SHEETS-SHEET 2.

operates mechanism,

7 set racks,

of each complete operation o EDMUND S. CHURCH,

COMPANY ,-'OF DAYTON. OHIO,

or DAYTON, c1110, ASSIGNOB a conron'urrou or onto,

orrrcn. j

CASH-REGISTER.

, Specification 01 Letters ratent .Patent'ed O t; 10 191f1 Applicationfiledseptember 12,.1901 Soria1No.'392,5 84.

To all whom 'itmay concern: Be it known that I, EDMUND S. Cannon, acitizen of the United -States, residing at Dayton, in the county ofMontgomery and State of Ohio,-h'ave invented certain new and useful.Improvements in Cash-Registers, of which I declarethe following to bea'full, clear, and exact description.

This invention is an improvement of that type of cash registerdescribedin Letters Patent of the United States, No. 7 51,611 issued to ThomasCarroll, Feb. 9, 1904:.

The main objects of this invention are; to provide an improved mechanism,for adjusting the registering racksto particular oper ative positions;to provide an improved means for locklng the racks 1n any of suchpos1t1ons; to provide lmproved means for controlling spring .actuatedindicating mechanism.

' With these and-incidental objects in view,l

the invention consists in certain novel features of construction andcombination of parts, the essential elements of. which are-set forth inappended claims and a preferred form of embodiment of which ishereinafter described with reference to the drawings which accompany andform part of this specification.

, Of said drawings: Figure'l is a vertical transverse section, drawerbeing omitted. Fig. 2 is a detail fof the flash. Fig. 3 is a detail ofthe camwhich segments and their corresponding racks to their in tialpositions and second, for compressing the springs which operate theseg-' ments. Fig. 4: is a; detail of. the cam which by its .connectionto the key detent-strip releases depressed keys at the end of eachcomplete revolution of the operating handle. Fig. 5 is a detail of the,cam and detent which lock theracks in any posltion to which they areset.

The cams'illustrated in Figs. 2, 3, 4: and 5 are shown in the relativepositions which the casing and cash first, for returning the themachine;

however, been substitutedior the operatin levers ofthe Carroll 'ro, rimna'rxonatpcas'n anersrna' mconrona'rnn IN 1 06.),-

device and a noveltcons'truction used for setting the racks. This".consists' of spring pressed segment gears! inmesh with the racks andcam-s which set and. release the segments'and also compress thesprings'by which. the segments are. actuated, regardless of any movementof the .segment.- j But one bank of .keys and the mechanism'operated'thereby is shown in the drawings. In the actual machine this bank ofkeys and the mechanism is duplicated several-time's, v.

In the device shown in the drawings the frame 1 has" journaled thereinthe *shaft 2 extending longitudinally through the-ma chine. Theoperating crank 55 shown. by dotted lines in the shaft 2. Rigid uponthis'shaft' are the cams 3; 4, 5, 6, 7. and 8. 'The cams' 3, and 42shown in Fig. 1 operate. the registering mechanism. .The registeringmechanism IS 770 Fig. 1' is. rigidly secured 130 adapted tobemoved'first, toward the rack bar 9, so thatuthe counterpinions; 43will ,come into the plane of the rack teeth 10,

second, downwardly over said racks, outwardly for .,"throwingthe,.-pinions' out third,'.

of mesh with the rack teeth, and *finally returned to its-initialposition as shown in 1, the amount wh'ich the counter is turnedbeingdependent uponthe position of the racks.

The register wheels 44' are mounted in the frame 11,,- while the frame11 isslidably mounted in a swingingv frame 12. The frame 12, which ispivoted at 13% is moved toward and away from the racks '9 by the link13, which is provided with an anti-friction roller 14 whichprojects intothecam groove 15. The cam groove 15 is "so formed with respect to-thecenter of the shaft 2 as.

to swing the frame 12 toward the racks and hold it in that positionuntil the counter has passed down over the racks, then to return theframe to its'outer position and thereby disengage the counter pinionsracks. I

The vertical movement of the counteris effected by the lever 16 which ispivoted at its rear end to a fixed bracket 17 and is pro vided withfiaroller 18 which projects into the cam groove .19. Themovement of thislever is so'timed as to draw the counter down ,over the racks whilethecounter'pinions are in posit-ionto engage therack teeth and toretu-rnthe same after have been disengaged .fromthe racks.

from the The keys are slidable in the frame of the machine and whendepressed will project into the path of a dog 21, which is mounted on arocking segment gear 22, loosely mounted on the shaft 23. A spring 24urges the segment toward the left of Fig. 1 but is normally preventedfrom doing so by the detent 26 and the plunger 27. The spring 24 iscoiled around a curved rod and is compressed between the head 46 ofsaid. rod and a lug 4'2, fixed to the segment gear 22. The rod 45 isslidahle in said lug and is secured at 48 to a. lever 49. Theoppositeend of the lever 49 is connected by a link to' a lever 51 (see Fig.pivoted at 52 and provided with a roller 53 which projects into a camgroove 54. It will be seen from the form of the cam groove 54, that uponstartingsto rotate the operating crank in the direction of the arrow 56,the lever 49 coming in contact with the lug 47 will move the segment 22to its Zero position provided the segment has been released in the lastpreceding operation of, the machine. then be held in its zero positionif no key has been depressed by the detent 26.. In case a key has beendepressed, the detent 26 would be swung out of its engaging position andthe segment would immediately swing back under the pressure of thespring 24 until stopped by thedepressed key.

The bank of keys is provided with a detent plate 28 which is movedupwardly to swing the detent 26 out of engagement with the dog 21, bythe depression of any key of the bank. The upward movement of the plate28 is efiected by one of the pins 29 extending from the shank of eachkey coming in contact with one of the inclined surfaces 30 on saiddetent plate. The pins 29 also cooperate with notches 31 in the detentplate, for the purpose of retaining depressedkeys in such position untilthe shaft 2 has been caused to make one complete revolution. A

release key 36 is provided for each bank for the purpose of releasingany key that has been depressed by mistake to which end a pin 41 on therelease key is adapted to enter an inclined slot in plate28 to liftthe'plate out of engagement with a depressed value key. As the upwardmovement ofthe plate v 28 upon the depressionof any key causes thedetent 26 to be swung out of engagement with the dog 21, and as it isdesirable upon the depression of the release key to retain said dog inits upper position, a detent- 87 is provided for so doing. The detent 37is forced into engagement with the dog 21 by the shoulder 38 on a plate39, provided with a cam slot 40 which co-acts with the pin'- 41 on therelease key 36. The detent 37 is normally held out of engagement withthe dog 2lib y a spring 37 The construction and arra gement is such thatdetent 26 is normally in engagement with dog 21 while It will plished bythe release key 36 or releasing lever 42, while detent 37 is rocked intoengagement by the depression of release key 36 but only remains inengagement while the release key is held depressed.

The keys are released at the end of each operation of the machine by thecam action illustrated in Fig. 4, the lever 42 lifting the detent strip28.

Each rack 9 is provided with. a notched alining plate 32, co-acting withthe plunger 27 which is engaged with and disengaged from the aliningplate by the device shown in Fig. 5, the spring 33 tending to withdrawthe plunger from engagement but being prevented heat so doing by the cam6, except during the time in which the racks are being restored and set.

The flash 34 is immediately drawn over the exposed indicators at thestarting of the operating crank by the spring 34. lease of the spring 34is effected by'the roller 35 being drawn into the cut away portion ofthe cam 7, as will be understood from Fig. 2 of the drawings. The cam 7returns the flash 34 to normal position at the end of-each operation.

The re- 4 The indicator drum 57 is jou'rnaled on the shaft Revolublewith and secured to the indicator drum is a pinion 59 which meshes withthe teeth 60 of the rack 9.

The operation of the machine is as follows By depressing one of the keys20 the detent 26 will, be thrown out of engagement with the dog 21 ashas already been de scribed. The shaft 2 is then caused to make onerevolution.- The cams act so as to first release the flash 34 andwithdraw the plunger 27 from engagement with the alining plate 32 andreturn the segment 22 to its Zero position by means of the lever 49which is immediately returned to its initial position and followed. bythe segment 22 which is thrown forward under the action of the spring 24until stopped by the depressed key. By this movement of the segment 22,in mesh with the rack 9, the rack 9.v will simultaneously set theindicator to the proper numeral and bring a certain number of teeth 10into position to be engaged by the counter pinions, Immediately afterthe rack 9 has been set, the plunger 27 is again forced into engagementwith the alining plate 32 and locks the rack. The register is nowbrought down its constant distance causing the pinions 43 to be engagedby the rack teeth 10 and turned an amount which corresponds to thenumber of rack teeth which have been moved into the path of theregister, and then moved out of engagement with the rack and returned tothe starting position. Finally, before the machine comes to rest, thelever 42 is rocked, throwing the detent. plate 28 out of engagement withthe de ressed key.

' v ,ncase the operating crank is turned when no key has been depressed,the segment 22 would merely be returned to its upper position andretained by the detent 26 in such position so that no registration wouldbe effected.

The plungers 27 are so positioned relatively' to the notches on aliningbar 32, that the, alining movement of the plungers slightly depressesrack bar 9, or in other words, the keys will stop the bar 9 so that thebottom of the notch in bar 32 opposite plunger 27 is slightly above thecenter of the plungers. The objects of this construction is to slightlyraise the dog 21 away from the key'so that there is less friction onsaid key and a light returning spring will be suificient.

While the form ofmechanism here shown and described, is admirablyadapted to fulfil the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the one form ofembodiment herein shown, for it is susceptible of embodiment in variousforms, all coming within the scope of the claims which follow.

What is claimed is as -follows: 1. In an accounting device, thecombination of a movable register; a movable rack;

a'spring-for moving the rack; manipulative devices for controlling themovement of the rack; means for moving the register over the rack;and-means for storing power in the spring when said rack is at rest.

2. In an accounting device, thecombination of a movable register; amovable rack; as ring pressed segment gear adapted to eng ge the rack;manipulative devices adapted to project into the path of the segment,gear; means for returning the segmentgear to its zero position, andmeans for compressing the spring by which the segment gear is actuatedafter the segment has been returned to its zero position.

c 3. In an accounting device, the combination of a register; a movablerack; a spring for moving the rack; manipulative devices for setting therack; means for storing power in the spring when said rack s at rest,and means for moving said register over said rack. Y

4, In an accounting device, the combination of a register, a movablerack, a spring pressed segment gear adapted to engage the 80 rack, adetent to retain said segment in its zero position, keys adapted tosimultaneously release said detent and project into the nth of saidsegment, a' locking device for ioiding' said rack in adjusted positionuntil a subsequent operation of the machine, and

mechanism,

means for returning the segment to its zero position and thencompressing its actuating spring as a preliminary to such subsequentoperation.

5. In an accounting device, the combination of a register; mechanism foroperating the register; means adapted to normally lock said mechanismagainst operation; de-

pressible keys for unlocking said mechaoperating devices; keys forpositioning said operating devices diiferentially, and means for causingsaid registering device to traverse said operating devices.

7. In an accounting device, the combination with a registeringmechanism, of an operating device therefor with means for causing adifi'erential positioning of said operating device,

operating device and the opei'ativity of the positioningmeans, and-mea-ns for causing the registering mechanism to traverse said operatingdevice after the same has been positioned.

8. In an accounting device, the combination with an indicatingmechanism, of rack segments 'for operating same, springs for actuatingsaid segments, keys for limiting differentially the movement of saidsegments, an operating mechanism for resetting said segments to normalposition and then compressing said springs -at'tlie beginning of eachoperation, thereby allowing said springs to again adjust said racksegments as deteri'nined'by said keys.

9. In an accounting device, the combination with an operating mechanismfor same, devices having potential energy for adjusting saidineclianism, keys for limiting differentially the adjustment of saidoperating and means for latching said operating mechanism in itsdifierentially adjusted position between operations ofthe machine.

10. In an accounting device, the combination with spring set operatingdevices,

and keys for limiting diiierentially the movement of said devices andplungers for alining the operating devices said plungers being sopositioned as to movement of said element is imparted theremanipulativedevices eontrolling the, differential adjustment of said slightlywithdrawthe operating devices from the keys for: the purpose specified.-

g Leoeem.

to, the said member being constructed to positively'return the elementto normal position at the beginning of each operation of the accountingdevice.

12. In an. accounting device, aloe combination with depressible valuekeys, of differential mechanism controlled thereby, a detent for thedifferential mechanism normallypreventing its operation, a movableelement eontrolled by the value keys for operating the fleiient, arelease key for the value keys a detent for the differential mechanismnormally permitilng its operation, a movable element controlled by sherelease key for operating said. second detent,- and said (letents soconstiiictetl and arranged that upon the release of their respectivecontrolling keys the latches will return to normal. position.

In testimony whereof I my signature in the presence of two Wiinesses.

EDMUND S. CHURCH.

"Witnesses J. B. HAYWARD, ROY Cu GLASS.

